Where is Dinosaur National Monument?

A Colorado and Utah
B Kansas
C Arizona and New Mexico

Dinosaur National Monument is a protected area on the border of Colorado and Utah. The Colorado side provides access to the monument’s deep canyons along the Green and Yampa Rivers. The Utah side contains the site of the dinosaur quarry, where more than 1,500 fossils are lodged in the cliffside.

The correct answer is Colorado and Utah.